While we can't meet you in person until the health crisis ends, our website in an excellent information resource, and our volunteers are active online.

Have a garden question? Follow these steps:

  1. First, Search our site under Find It Here. That's the fastest way to find researched answers to thousands of garden questions. Results include monthly gardening tips and downloadable gardening guides.
  2. If you don't find your answer, visit our Ask a Master Gardener page and check under the Q&A Categories or use our online form to submit your question. The more details you provide, the easier it will be to diagnose our problem. Note: We are NOT allowed to recommend retailers for plants or products.

Plant identification from a photograph:

This can be challenging, and we can't guarantee we'll be able to ID your plant. Our Ask a Master Gardener page lists requirements. Please follow carefully.

We'll update this notice if things change. Meanwhile, stay safe, and happy gardening.

Check the moistness of your containers by poking a finger down an inch or two. Water in the morning, at the base of the plant and until the water runs out the bottom. Be sure to empty the saucer of excess water after you have watered and also after a rainfall. ... See MoreSee Less

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Cut back the straggly and tattered foliage of early bloomers such as Lady’s Mantle (Alchemilla mollis), Brunnera and hardy Geraniums. New foliage will appear and the plants will look fresh and revitalized. ... See MoreSee Less

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“Like mist in the distance, they soften and enhance the landscape [and] bestow grace and a little sense of mystery.” Louise Wilder, as quoted in Patrick Lima's article on Meadow Rue. Available as a free download from the GardenMaking site.
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Worms, glorious worms! Did you just say "ew"? Think again. Here's a great video from Royal Botanical Gardens showing how to start your own vermiculture colony. Good for your soil!
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ALERT. The Canadian Food Inspection Agency (CFIA) is investigating reports of individuals receiving unsolicited packages of seeds of unknown origin. If you receive such a package, do NOT plant the seeds, but contact CFIA. The full CFIA notice provides more detail.
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Don't feed your roses after the end of July so that the growth can slow down before the weather turns cold. ... See MoreSee Less

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Just one week to the LEAF virtual tree tour of Wychwood Barns Park. Learn interesting facts about trees and about common urban stresses so that you can help the trees in your own neighbourhood thrive. Register on their website.
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Toronto Master Gardeners

The Toronto Master Gardeners are volunteers committed to providing the public with horticultural information, education and inspiration. The resources and services available through this site are designed to help Toronto residents use safe, effective, proven and sustainable horticultural practices to create gardens, landscapes and communities that are both vibrant and healthy.

Gardening Guides

Our useful Gardening Guides provide introductory information for the home gardener about a broad range of horticultural topics.

Book A Master Gardener

Local organizations can book our volunteers to deliver horticultural presentations, provide question and answer sessions, and staff advice clinics.

Become a Master Gardener

If you’re in Toronto, here’s how to become a Master Gardener:

Ask A Master Gardener

Toronto Master Gardeners are happy to answer your gardening questions posted on this site, called in to our Infoline or asked in person at our scheduled events.

Gardening Tips

Throughout the year, Toronto Master Gardeners post brief gardening tips on this site to help you with your seasonal gardening tasks.


Master Gardeners of Ontario

Compost Council of Canada

Toronto Region Conservation Authority

Toronto Botanical Gardens

City of Toronto

Toronto Public Library

Toronto Master Gardeners Code of Conduct

The Toronto Master Gardeners (TMG) is an organization committed to fostering an environment in which everyone we engage with, including fellow members and the general public, is treated with dignity and respect, regardless of race, national or ethnic origin, colour, age, gender, sexual identity or sexual orientation, religion, political affiliation or abilities. All members are expected to adhere to this principle.

The TMG does not tolerate any form of discrimination, harassment, abuse or bullying.

If you feel that the code of conduct has been breached, please contact the executive coordinator or assistant coordinator, whose contact information can be found here.